Colored polymeric dielectric particles and method of manufacture

Details Colored polymeric dielectric particles and method of manufacture Colored polymeric dielectric particles and method of manufacture

1993-05-21

1994-11-01

Nagumo, Mark

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Electrophoretic imaging, process, composition, or product

430 32, 430 37, 430 37, 5253313, 5253315, 525366, 525369, 525379, 526296, 5263442, G03G 1704

Patent

active

053606892

ABSTRACT:
A process for forming dielectric particles includes admixing a vinyl halide monomer and a crosslinker in a liquid dispersion medium to form a first mixture. A second mixture of an initiator and a stabilizer is prepared and added to the first mixture to form a third mixture in which the monomer polymerizes to form white crystalline polymer particles which are sonified for uniformity. The particles may be stained by exposure to a dehydrohalegenation reagent and dispersed in an electrophoretic fluid for use in an electrophoretic display.

REFERENCES:
patent: 3775107 (1973-11-01), Tulagin et al.
patent: 4093534 (1978-06-01), Carter et al.
patent: 4285801 (1981-08-01), Chiang
patent: 4298448 (1981-11-01), Muller et al.
patent: 4891286 (1990-01-01), Gibson

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